/Engine/Source/Runtime/Engine/Public/SceneView.h
Sets up the view rect parameters in the view's uniform shader parameters
void SetupViewRectUniformBufferParameters ( [FViewUniformShaderParameters](API\Runtime\Engine\FViewUniformShaderParameters) & ViewUniformShaderParameters, const FIntPoint & InBufferSize, const FIntRect & InEffectiveViewRect, const [FViewMatrices](API\Runtime\Engine\FViewMatrices) & InViewMatrices, const [FViewMatrices](API\Runtime\Engine\FViewMatrices) & InPrevViewMatrice ) const